Research Of Dispersed-Ozone Floation(DOF) For Artificial Landscape Water Circulation Processing Technology

In recent years,in urban green park and the construction of residential area,lakes and landscape construction of water is favored,artificial landscape has become an important part of living environment for improving living environment is very important.However,since most of artificial water for the dead or static inner circle of poor liquidity,self-purification water is weak,sewage,rain and polluted,garbage in lake water quality deterioration and easy to lose eutrophication,the basic function of landscape water,therefore about artificial water treatment technology.Paper for the man-made lake water quality deterioration of xi,an shangu power Co., LTD,using Dispersed-Ozone Floation(DOF) process to treat shangu man-made water, the study used in artificial landscape Dispersed-Ozone Floation(DOF) water circulation in the treatment effect and technical characteristics,the process parameters,according to the water quality index of shaanxi drum artificial monitoring and analysis,the author put forward to prevent man-made situation of water pollution.Research shows that control ozone floating device and stable operation of the key parameters are PAC and ozone dosing quantity,reflux ratio and gas pressure,shaanxi drum water cycle for the best with man-made operation condition for PAC dosing quantity 30mg/L,ozone dosing quantity for 5mg/L,dissolved vapor pressure of 0.3 MP, reflux ratio to 50%.Ozone floating device after the effluent turbidity,chroma,COD, UV254,ammonia nitrogen and phosphorus,respectively 20～40NTU,25.6c.u.,43.9 mg/L, and 0.156,20.2 mg/L,and 3.71 mg/L.Shows Dispersed-Ozone Floation(DOF) of pollutant treatment is effective,especially for turbidity,chroma and odor removal effect is remarkable.Through the continuous quality inspection for artificial lake,circulation water during processing,turbidity keep between 6～12ntu,COD keep between 10～15mg/L, ammonia nitrogen average content about 3 mg/L,total phosphorus content of average about 0.5 mg/L,sensory indexes are especially good.Proof of flotation process using ozone water cycle treatment can effectively improve water quality,to ensure the lake water quality requirements to landscape.